Headlight dimmer



,Apri 10, 19231 r U. S. G. BROBST HEADLIGHT DIMMER "Filled Mayv 5l, 1921/N vE/v Ta f? ULYs srs Enoes-1.'

Patented Apr. l0, 1923.

si' oFFIcEg.,

ULyssEs s. G. BRoBs'r, or FRESNO, CALIFORNIA,

HEADLIGHT DIMIVIER.

Application filed May 31, 1921. Serial 473,565.

To all whom it' may concern:

Be it known that I, ULYssns S. G. BRoBs'r, a citizen of the UnitedStates, and resident of Fresno, in the county of Fresno and State ofCalifornia, have invented certain new and useful Improvements inHeadlight Dimmers, of which the following is a specification.

My invention relates to a headlight dimmer for automobiles and the like,but may be used anywhere such a device is required or desired ornecessary. Heretofore in dimming or de'fiecting headlights of vehiclesit has been customary touse various forms of special lenses for theheadlights, some of which diffuse the light and some of which deiiectthe light, .but all of which absorb part of the light from the lampthereby rendering it necessary to have a higher powered bulb than shouldbe required to furnish the required amount of light toproperly illuminethe roadway.

It is one of' the objects of my invention to provide means fordeiiecting the light to any desired point without the use of specialvlenses or in any way altering the construction of the headlight.

Another object is to provide a cheap, simple and eiiicient device to beattached-to the headlight which may be adjustedv to defleet the light toany desired point without materially altering the headlight.

A further object is to provide means for focusing the headlights at anygiven point or for diffusing the light as desired. v

A still further object is to provide cheap, simple and eicient means foraccomplishing the above purpose.

A still further object is to provide means of the above character whichwill utilize all of the light from the bulbs.

. Other objects and advantages will appear hereinafter, and while I haveshown and will describe my preferred form of this invention, it will beunderstood that I do not' limit myself to such preferred form but thatvarious changes and adaptations may be made therein without departingfrom the spirit of my invention.

In the drawings accompanying and formin@ a part hereof:

Fig. 1 is a vertical section through a headlight equipped with myadvice.

Fig. 2 is a right hand elevation of Fig. l.

Fig. 2.

.ber of my device.

Fig. 5 is a section on the line 5 5 of Fig. 4.

Fig. 6 is a top plan of the deiiector holder.

Referring to the drawings, the preferred form of my device comprises adeflector 16 mounted within a holder 17 upon the lower wall of the innerperiphery of the headlight 1.8. The headlight is of any usualconstruction, the holder 17 being made to conform to the interiorconfiguration thereof. The upper end of holder 17 extends at an angle asbest shown in Figure l, which angle is such as to extend a little abovethe center of the globe 19 at its front end, and at its rear end is evenwith the lower portion of the globe, it being globe 19 is covered with asuitable material to prevent the visibility of the laments from thefront. Mounted in holder 17 is the deflector 16 which may be made ofglass coated on its lower side with mercury and paint similar to amirror, or may be made of any other desired material, highly polishedsteel, for instance. Formed centrally of member 16 is a semi-globularrecess 20, which when the device is positioned for use is positionedcentrally of the globe 19 and surrounds the lower portion thereof. Thelower portion 21 of holder 17 is provided with a slot 22 through whichpasses a bolt 23 extending through an aperture in the lower `portion ofthe headlight. Slot 22 rovides means for rotating holder17 .anddeflector 16 to cause the light to be reflected A thumb screw 24l invarious directions. provides means for locking holder 17 in its adjustedposition. This form of my invention is designed preferably for verylarge headlightsA and its operation is best illustrated in Figure 1 bybroken lines.

In the use of my device the globe is positioned for use in the usualmanner. The deiiector and its holder is then positioned for use as shownin Figures 1, 2 and 3 to reflect the light straight ahead. When it isdesired to deflect the light to a central point along the roadway theholder is rotated to the left for the right hand headlight andto theright for the left hand headlight the desired amount to focus the lightwhere Fig.y 3)` is a horizontal cross section of understood that the tipof` it is desired, and a thumb nut 24 is then tightened to secure theholder y in its adjusted position.

Having .described my invention what I claim is:

In a headlight having ka reflector and a bulb the Combination of anapproximately horizontal frame of a configuration in top plan to fit theinterior of the reflector and 10 having a downwardly projecting apronsurrounding the curved portion thereof, said apron being of aconfiguration to fit the perimeter of the lower half of the reflectorand terminating at its lower end in an ear provided with a horizontallydisposed slot therethrough; a bolt projecting through said reflector andslot; a wing nut on the inner end of said bolt whereby said frame islocked against movement; and a deflector detachably mounted in saidframe having a central pocket adapted to surround the lower portion ofthe bulb.

In witness that I claim the foregoing I have hereunto set my hand this21st day of May, 1921.

ULYSSES S. G. BROBST.

